Adjustable grate for stove-ovens



(No Model.)

W. L. HINDS. ADJUSTABLE GRATE FOR STOVE OVENS. N0. 504;886.

Patented Sept. 12, 1893 UNITED STATES PATENT OFFICE.

WILLIAM L. HINDS, OF DES MOINES, IOWA.

ADJUSTABLE GRATE FOR STOVE-OVENS.

SPECIFICATION forming part of Letters Patent No. 504,836, datedSeptember 12, 1893. Application filed April 3, 1893. Serial No. 468,815.(No model.)

To to whom it may concern:

Be it known that 1, WILLIAM L. HINDS, a citizen of the United States ofAmerica, residing at Des Moines, in the county of Polk and State ofIowa, have invented an Adjustable Grate for Stove-Ovens, of which thefollowing is a specification.

The object of my invention is to provide a grate or shelf for supportingarticles within an oven, and to so arrange the support for said gratethat all of the top surface may be utilized, and to provide simple,strong, and easily operated means whereby said grate or shelf may bevertically adjusted as required to control the distancesbetween articlesplaced upon the grate and the top of the oven as required to regulatethe degree of heat to which such articles are subjected.

To this end my invention consists in the combination with an oven grateor shelf of a screw threaded post extended vertically through ascrew-threaded bore in one end of said shelf and having bearings in thetop and bottom of the oven, and provided with means for rotating it froma point outside of the stove as hereinafter set forth, pointed out in myclaims, and illustrated in the accompanying drawings, in which- Figure lis a side elevation of astove,showingthe oven door open and the gratetherein supported upon a screw-threaded post and one device foroperating said rod shown in solid lines and a modified device shown indotted lines. Fig. 2 is a like view showing a modified form of gearingfor operating the grate or shelf-supporting post. Fig. 3 is a top orplan view of the grate or shelf.

Referring to the accompanying drawings the reference letter A is used todesignate a cook stove of the ordinary kind having an oven A 13designates a grate or shelf in said oven and provided at the centralportion of one of its ends with a screw-threaded bore B A screw-threadedpost 6 is extended vertically through the oven and the screw threadedbore of the grate or shelf and has its hearings in the bottom and top ofthe stove oven, so that a rotation of the said post will either elevateor lower the grate or shelf and a strong support for the shelf beprovided. My preferred means for rotating this post is shown in Fig. 1and consists of a bevel gear D fixed to the said post a crank shaft Dextended a grate in a stove oven,

through the side of the stove and having a bevel gear D on its inner endin mesh with the gear D. A cheaper method of operating said post isillustrated by dotted lines in the same figure and consists in extendingthe post upwardly through the top of the stove and detachably connectinga crank F therewith.

In Fig. 2 is shown another manner of rotating the post D, which consistsin fixing a worm gear H on the postand extending a crank shaft H throughthe side of the stove and provided with a gear wheel H on its inner endto engage the worm gear H.

In practical use it will be obvious that by having the support for theshelf at one end, the whole surface of the shelf may be utilized, andwhen a shelf of this kind is supported from one end a strong support isneccessary, and for this reason the said shelf has bearings both aboveand below the shelf.

lVhat I claim as new, and desire to secure by Letters Patent of theUnited States, therefore, is

1. Improved means for vertically adjusting comprising the followingelements in combination, to wit:a screw threaded post having hearings inthe top and bottom of the stove,a shelf or grate, having a verticalscrew threaded bore in one of its ends to receive said post, andmechanism at the top of the stove post, for the purposes stated.

2. Improved mechanism for vertically adjusting a grate in a stove oven,comprising the following elements in combination, to wit:-a screwthreaded post extended vertically through one end of the stove oven andhaving bearings both at its top and bottom for the purposes stated, abevel gear wheel fixed to the top of said post, a shaft extended throughthe side of the stove at the top of the oven, and provided with a gearon its inner end to mesh with the aforesaid one, and a crank on its end,a rectangular shelf or grate within the oven and having thescrewthreaded bore near its endto admit the said post, all arranged andcombined, substantially in the manner set forth for the purposes stated.

YVILLIAM L. HINDS.

Witnesses B. H. ORWIG, THOMAS G. ORWIG.

for rotating said-

